NO855007L - PROCEDURE FOR ANALOGIC VOICE TRANSFER OVER RADIO. - Google Patents

PROCEDURE FOR ANALOGIC VOICE TRANSFER OVER RADIO.

Info

Publication number
NO855007L
NO855007L NO855007A NO855007A NO855007L NO 855007 L NO855007 L NO 855007L NO 855007 A NO855007 A NO 855007A NO 855007 A NO855007 A NO 855007A NO 855007 L NO855007 L NO 855007L
Authority
NO
Norway
Prior art keywords
jamming
sound pulses
analogic
procedure
transfer over
Prior art date
Application number
NO855007A
Other languages
Norwegian (no)
Other versions
NO166308B (en
NO166308C (en
Inventor
Bodo Rittenauer
Werner Kober
Original Assignee
Siemens Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of NO855007L publication Critical patent/NO855007L/en
Publication of NO166308B publication Critical patent/NO166308B/en
Publication of NO166308C publication Critical patent/NO166308C/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transmitters (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Transceivers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Toys (AREA)

Abstract

In the case of radio networks in tactical operation, special measures for jamming resistance to specific jammers are generally used only when jamming is to be expected or is already taking place, in view of the availability of the existing radio channels and the reduced transmission quality of the information to be transmitted which generally results. However, in the uncoded transmission of speech in analog form carried out in the normal way there is still the risk of a potential enemy infiltrating radiotelephone communication and causing confusion by imitating commands or messages. To prevent this, it is proposed to inject at the transmitting end short sound pulses (TI) into the voice signal (ASS) at pseudo-randomly varying time intervals (F), the sound pulses being evaluated at the receiving end to monitor for the infiltration of a potential enemy in the voice communication. <IMAGE>
NO855007A 1984-12-12 1985-12-12 PROCEDURE FOR TRANSMISSION OF ANALOGUE SPEECH SIGNALS OVERRADIO. NO166308C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3445312 1984-12-12

Publications (3)

Publication Number Publication Date
NO855007L true NO855007L (en) 1986-06-13
NO166308B NO166308B (en) 1991-03-18
NO166308C NO166308C (en) 1991-06-26

Family

ID=6252587

Family Applications (1)

Application Number Title Priority Date Filing Date
NO855007A NO166308C (en) 1984-12-12 1985-12-12 PROCEDURE FOR TRANSMISSION OF ANALOGUE SPEECH SIGNALS OVERRADIO.

Country Status (8)

Country Link
EP (1) EP0184811B1 (en)
AT (1) ATE61503T1 (en)
DE (1) DE3582023D1 (en)
ES (1) ES8701442A1 (en)
FI (1) FI79216C (en)
IN (1) IN163475B (en)
NO (1) NO166308C (en)
PT (1) PT81651B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016133C2 (en) * 2000-03-31 2002-06-20 Siemens Ag Method for securing a contactless signal transmission from a transmitter to a receiver and signal transmission device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521991C (en) * 1928-08-17 1931-03-28 Telefunken Gmbh Method for secret transmission, in particular of telephone currents, by means of modulated high frequency
CH559483A5 (en) * 1973-06-12 1975-02-28 Patelhold Patentverwertung
DE2952158A1 (en) * 1979-12-22 1981-06-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Radio transmission system with very short transmit times - emits test train before and after information signal train for checking on receiver end
DE3012513C2 (en) * 1980-03-31 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Procedure for monitoring analog and digital radio links
JPS58198934A (en) * 1982-05-17 1983-11-19 Sony Corp Secret talk device
GB2128453A (en) * 1982-10-08 1984-04-26 Philips Electronic Associated System identification in communications systems

Also Published As

Publication number Publication date
FI79216C (en) 1989-11-10
PT81651A (en) 1986-06-11
ES8701442A1 (en) 1986-11-16
NO166308B (en) 1991-03-18
FI79216B (en) 1989-07-31
NO166308C (en) 1991-06-26
IN163475B (en) 1988-10-01
EP0184811A3 (en) 1988-01-13
PT81651B (en) 1994-07-29
ATE61503T1 (en) 1991-03-15
ES549878A0 (en) 1986-11-16
DE3582023D1 (en) 1991-04-11
EP0184811A2 (en) 1986-06-18
EP0184811B1 (en) 1991-03-06
FI854900A0 (en) 1985-12-11
FI854900L (en) 1986-06-13

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